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| author |  Nick Piggin <npiggin@kernel.dk>
| 2011-01-07 17:49:57 +1100 |
|---|---|---|
| committer | Nick Piggin <npiggin@kernel.dk>
| 2011-01-07 17:50:29 +1100 |
| commit | 34286d6662308d82aed891852d04c7c3a2649b16 (patch) | |
| tree | c4b7311404d302e7cb94df7a4690298e1059910a /fs/cifs/dir.c | |
| parent | fs: cache optimise dentry and inode for rcu-walk (diff) | |
| download | linux-34286d6662308d82aed891852d04c7c3a2649b16.tar.gz linux-34286d6662308d82aed891852d04c7c3a2649b16.tar.bz2 linux-34286d6662308d82aed891852d04c7c3a2649b16.zip | |
fs: rcu-walk aware d_revalidate method
Require filesystems be aware of .d_revalidate being called in rcu-walk
mode (nd->flags & LOOKUP_RCU). For now do a simple push down, returning
-ECHILD from all implementations.
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/cifs/dir.c')
| -rw-r--r-- | fs/cifs/dir.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index e3b10ca6d453..db2a58c00f7b 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -656,6 +656,9 @@ lookup_out: static int cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd) { + if (nd->flags & LOOKUP_RCU) + return -ECHILD; + if (direntry->d_inode) { if (cifs_revalidate_dentry(direntry)) return 0; |